That's why don't you ever ever trust easily in bitcoin. You should know more first before engaging with cryptocurrency. Having a lot of knowledge and experience is important for you to know the do's and dont's in cryptocurrency.
Scammers are professionals in fooling people and take their money without even being caught by the internet society. They are expert in taking your money instantly and it is because of your cooperation. So in the first place, try not to have a transaction with a people with least personal information.
A big issue, I think, is that people all over the world are exposed to the internet (and everything that comes with it) at such speed that they cannot grasp it. Isn't it understandable that they are gullible? Yesterday they could not even talk to people 100 miles away, and suddenly people all over the world promise them free money.
I don't have a solution, and they will have to go through a hard learning phase, but I think I understand why people fall for the tricks of scammers. It happens here (northern europe) as well with older people who are easily overwhelmed. Not saying that all older people are like that(!) but they are easier victims than those who grew up with new technology.